/* ============================================================================
   Isaac Wooten — Editorial portfolio design system
   Frosted-blue canvas · layered white surfaces · navy ink · gunmetal accent.
   Type: Fraunces (display serif) / Inter (text) / JetBrains Mono (labels).
   Light-only, anchored on #dfebf6. Motion is restrained and meaningful.
   ========================================================================== */

:root {
  color-scheme: light;

  /* ---- Surfaces (frosted-blue canvas, white panels lift content) -------- */
  --paper:        #dfebf6; /* the anchor — page canvas */
  --paper-deep:   #d2e2f0; /* alternating / washed sections */
  --surface:      #ffffff; /* elevated cards */
  --surface-soft: #f4f9fd; /* barely-tinted panels */

  /* ---- Ink (softened navy — crisp, lower-contrast for the eye) ---------- */
  --ink:          #28394a; /* headings — soft navy, not near-black */
  --ink-2:        #4a5e72; /* body text — lighter, easier on the eyes */
  --muted:        #6c7e8e; /* gunmetal blue-grey */
  --faint:        #91a3b1; /* faint mono / dividers text */

  /* ---- Lines ------------------------------------------------------------ */
  --line:         #c4d6e4;
  --line-2:       #adc4d6;
  --hairline:     rgba(20, 32, 43, 0.07);

  /* ---- Accent (gunmetal-slate → deep navy) ------------------------------ */
  --accent:       #3c5570; /* gunmetal slate */
  --accent-deep:  #16242f; /* hover / deepest */

  /* ---- Type ------------------------------------------------------------- */
  --display: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* Fluid type scale */
  --step--1: clamp(0.8rem, 0.76rem + 0.18vw, 0.9rem);
  --step-0:  clamp(1rem, 0.96rem + 0.22vw, 1.13rem);
  --step-1:  clamp(1.2rem, 1.1rem + 0.5vw, 1.55rem);
  --step-2:  clamp(1.5rem, 1.28rem + 1.05vw, 2.4rem);
  --step-3:  clamp(2rem, 1.5rem + 2.4vw, 3.6rem);
  --step-4:  clamp(2.8rem, 1.85rem + 4.8vw, 5.8rem);
  --step-5:  clamp(3.3rem, 1.8rem + 7.6vw, 8.4rem);

  /* ---- Space / rhythm --------------------------------------------------- */
  --measure: 62ch;
  --gutter: clamp(1.25rem, 0.7rem + 3vw, 4.5rem);
  --maxw: 1280px;

  /* ---- Elevation (cool, subtle) ----------------------------------------- */
  --shadow-sm: 0 1px 2px rgba(20,40,60,.05);
  --shadow:    0 18px 40px -22px rgba(18,40,62,.35);
  --shadow-lg: 0 40px 80px -30px rgba(18,40,62,.42);

  /* ---- Motion ----------------------------------------------------------- */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

/* ---- Base ----------------------------------------------------------------- */
body {
  background: var(--paper);
  /* whisper of depth: a cool wash from the top, never a "mesh gradient" */
  background-image:
    radial-gradient(120% 60% at 50% -10%, rgba(255,255,255,.55), rgba(255,255,255,0) 60%),
    linear-gradient(180deg, #e6f0f8 0%, var(--paper) 30%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.62;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
::selection { background: var(--accent); color: #fff; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---- Typographic primitives ---------------------------------------------- */
.display {
  font-family: var(--display);
  font-weight: 400;
  line-height: 0.96;
  letter-spacing: -0.025em;
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 0, "WONK" 0, "opsz" 144;
}
.serif { font-family: var(--display); font-optical-sizing: auto; }

.label {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

.lede {
  font-family: var(--display);
  font-size: var(--step-2);
  line-height: 1.22;
  font-weight: 380;
  letter-spacing: -0.015em;
  max-width: 20ch;
  color: var(--ink);
}

.prose { max-width: var(--measure); }
.prose p + p { margin-top: 1.05em; }
.prose p { color: var(--ink-2); }

/* Animated underline links */
.link {
  text-decoration: none;
  color: var(--accent);
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 0% 1.5px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size .45s var(--ease), color .3s var(--ease);
  padding-bottom: 1px;
}
.link:hover { background-size: 100% 1.5px; color: var(--accent-deep); }
.link--always { background-size: 100% 1.5px; }
.link--always:hover { color: var(--accent-deep); }

/* ---- Header / nav --------------------------------------------------------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 72%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--hairline);
}
.site-head .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  font-weight: 500;
}
.brand .mono-mark {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  transition: transform .5s var(--ease);
}
.brand:hover .mono-mark { transform: rotate(-6deg) scale(1.06); }
.brand .mono-mark img { width: 100%; height: 100%; object-fit: contain; }

.nav { display: flex; gap: clamp(1rem, 2.6vw, 2.2rem); align-items: center; }
.nav a {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--muted);
  transition: color .25s var(--ease);
  position: relative;
}
.nav a:hover { color: var(--ink); }
.nav .nav-num { color: var(--line-2); margin-right: 0.35em; }
.nav .nav--cta {
  color: var(--accent);
  border: 1px solid var(--line-2);
  border-radius: 100px;
  padding: 0.45em 1em;
  background: var(--surface);
  transition: border-color .3s var(--ease), color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}
.nav .nav--cta:hover {
  color: var(--accent-deep);
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}
.nav__links { display: flex; gap: clamp(1rem, 2.6vw, 2.2rem); align-items: center; }
.nav-toggle { display: none; }
.nav-toggle .i-x { display: none; }
.nav.is-open .nav-toggle .i-menu { display: none; }
.nav.is-open .nav-toggle .i-x { display: block; }
@media (max-width: 680px) {
  .nav-toggle {
    display: grid; place-items: center; width: 38px; height: 38px; flex: none; order: 9;
    border: 1px solid var(--line-2); border-radius: 10px; background: var(--surface);
    color: var(--ink); cursor: pointer;
  }
  .nav-toggle svg { width: 18px; height: 18px; }
  .site-head.over-hero .nav-toggle { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.34); color: #eef4f9; }
  .nav__links {
    position: absolute; top: calc(100% + 1px); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 0.25rem var(--gutter) 1.1rem;
    background: color-mix(in srgb, var(--paper) 97%, transparent);
    -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    opacity: 0; visibility: hidden; transform: translateY(-10px);
    transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s var(--ease);
  }
  .nav.is-open .nav__links { opacity: 1; visibility: visible; transform: none; }
  .nav__links a { padding: 0.95rem 0; font-size: var(--step-0); color: var(--ink); border-bottom: 1px solid var(--hairline); }
  .nav__links a .nav-num { color: var(--accent); }
}

/* ---- Hero ----------------------------------------------------------------- */
.hero { padding-block: clamp(4rem, 9vw, 9.5rem) clamp(3rem, 6vw, 6rem); position: relative; }
.hero__meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}
.hero__avail {
  display: inline-flex; align-items: center; gap: 0.5em;
  font-family: var(--mono); font-size: var(--step--1);
  letter-spacing: 0.06em; color: var(--ink-2);
}
.hero__avail .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #2f9e6f; /* available green, used as a meaningful status only */
  box-shadow: 0 0 0 0 rgba(47,158,111,.5);
  animation: pulse 2.6s var(--ease-soft) infinite;
}
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(47,158,111,.45)} 70%{box-shadow:0 0 0 7px rgba(47,158,111,0)} 100%{box-shadow:0 0 0 0 rgba(47,158,111,0)} }
@media (prefers-reduced-motion: reduce) { .hero__avail .dot { animation: none; } }

.hero__name {
  font-size: var(--step-5);
  margin-bottom: 0.08em;
}
.hero__role {
  font-size: var(--step-2);
  color: var(--muted);
  font-weight: 380;
  font-family: var(--display);
  letter-spacing: -0.015em;
}
.hero__statement {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 840px) {
  .hero__statement { grid-template-columns: 0.8fr 1.2fr; gap: clamp(2rem,5vw,5.5rem); }
}
.hero__statement .lede { max-width: 16ch; }

/* Credibility signal row */
.hero__signals {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}
@media (min-width: 720px) { .hero__signals { grid-template-columns: repeat(4, 1fr); } }
.signal {
  padding: clamp(1.2rem, 2.5vw, 1.8rem) 0;
  padding-right: 1rem;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 720px) {
  .signal { border-bottom: none; border-left: 1px solid var(--line); padding-left: clamp(1rem,2vw,1.6rem); }
  .signal:first-child { border-left: none; padding-left: 0; }
}
.signal__n { font-family: var(--display); font-size: var(--step-2); font-weight: 400; letter-spacing: -0.02em; line-height: 1; color: var(--ink); }
.signal__l { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-top: 0.55rem; }

/* ---- Section scaffolding -------------------------------------------------- */
.section { padding-block: clamp(3.75rem, 7.5vw, 7.5rem); }
.section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.5rem;
  margin-bottom: clamp(1.75rem, 4vw, 3.25rem);
  border-bottom: 1px solid var(--line);
}
.section__title { font-size: var(--step-2); font-weight: 400; letter-spacing: -0.02em; font-family: var(--display); }

/* ---- Work index ----------------------------------------------------------- */
.work { display: flex; flex-direction: column; }
.work__item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: clamp(1rem, 4vw, 3rem);
  padding: clamp(1.6rem, 3vw, 2.6rem) clamp(0.75rem, 2vw, 1.5rem);
  margin-inline: clamp(-0.75rem, -2vw, -1.5rem);
  border-bottom: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: background .5s var(--ease), box-shadow .5s var(--ease), transform .5s var(--ease);
}
.work__item:first-child { border-top: 1px solid var(--line); }
.work__item:hover {
  background: var(--surface);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  border-color: transparent;
}
.work__num { font-family: var(--mono); font-size: var(--step--1); color: var(--accent); padding-top: 0.6rem; font-weight: 500; }
.work__title { font-family: var(--display); font-size: var(--step-3); font-weight: 400; letter-spacing: -0.025em; line-height: 1.04; }
.work__desc { color: var(--muted); font-size: var(--step-0); margin-top: 0.6rem; max-width: 52ch; line-height: 1.55; }
.work__tags { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 0.2em 0.75em;
  background: color-mix(in srgb, var(--surface) 50%, transparent);
}
.work__arrow {
  align-self: center;
  font-family: var(--display);
  font-size: var(--step-2);
  color: var(--line-2);
  transform: translateX(-8px);
  opacity: 0;
  transition: transform .5s var(--ease), opacity .5s var(--ease), color .5s var(--ease);
}
.work__item:hover .work__arrow { opacity: 1; transform: translateX(0); color: var(--accent); }
@media (max-width: 760px) {
  .work__item { grid-template-columns: auto 1fr; }
  .work__arrow { display: none; }
}

/* ---- Experience (CV timeline) --------------------------------------------- */
.cv { list-style: none; padding: 0; margin: 0; }
.cv__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.4rem 2rem;
  align-items: baseline;
  padding-block: clamp(1.05rem, 2.2vw, 1.55rem);
  border-bottom: 1px solid var(--line);
  transition: padding-left .4s var(--ease);
}
.cv__row:hover { padding-left: 0.5rem; }
.cv__main { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.35rem 1rem; }
.cv__co { font-family: var(--display); font-size: var(--step-1); font-weight: 400; letter-spacing: -0.02em; }
.cv__role { color: var(--muted); font-size: var(--step-0); }
.cv__note { font-family: var(--mono); font-size: var(--step--1); color: var(--muted); letter-spacing: 0.02em; text-align: right; white-space: nowrap; }
.cv__note a { text-decoration: none; color: var(--ink-2); }
.cv__note a:hover { color: var(--accent); }
.cv__note .exit { color: var(--accent); }
@media (max-width: 620px) {
  .cv__row { grid-template-columns: 1fr; }
  .cv__note { text-align: left; white-space: normal; }
}

/* ---- About ---------------------------------------------------------------- */
.about__grid { display: grid; gap: clamp(2rem,5vw,4.5rem); align-items: start; }
@media (min-width: 880px) { .about__grid { grid-template-columns: 0.85fr 1.35fr; } }
.about p { font-size: var(--step-1); font-family: var(--display); font-weight: 360; line-height: 1.5; color: var(--ink-2); letter-spacing: -0.005em; }
.about p + p { margin-top: 0.85em; }
.about p strong { color: var(--ink); font-weight: 500; }
.about__aside {
  display: grid; gap: 1.5rem;
  margin-top: clamp(2rem,5vw,3rem);
  padding: clamp(1.5rem, 3vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
}
.about__aside dt { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.4rem; }
.about__aside dd { font-size: var(--step-0); color: var(--ink); }

/* Headshot — elevated white card */
.portrait {
  aspect-ratio: 4 / 5;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: grid; place-items: center;
  overflow: hidden;
  position: sticky; top: 100px;
}
.portrait img { width: 100%; height: 100%; object-fit: cover; }
.portrait .mono-fallback { font-family: var(--display); font-size: clamp(3rem, 12vw, 7rem); color: var(--line-2); letter-spacing: -0.03em; }
@media (max-width: 880px) { .portrait { position: static; max-width: 360px; } }

/* ---- Contact -------------------------------------------------------------- */
.contact {
  padding-block: clamp(4.5rem, 10vw, 10rem);
  margin-top: clamp(2rem, 5vw, 4rem);
  border-top: 1px solid var(--line);
}
.contact__cta { font-size: var(--step-4); font-weight: 400; letter-spacing: -0.03em; line-height: 1.0; max-width: 15ch; font-family: var(--display); }
.contact__cta a { text-decoration: none; color: var(--accent); }
.contact__cta a:hover { color: var(--accent-deep); }
.contact__links { margin-top: clamp(2.5rem, 6vw, 4rem); display: flex; flex-wrap: wrap; gap: clamp(1.25rem, 4vw, 2.5rem); }
.contact__links a {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.04em;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 0.5rem;
  color: var(--ink-2);
  padding-bottom: 0.3rem;
  border-bottom: 1px solid transparent;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.contact__links a .arr { color: var(--muted); transition: transform .3s var(--ease); }
.contact__links a:hover { color: var(--accent); border-color: var(--line-2); }
.contact__links a:hover .arr { transform: translate(3px,-3px); color: var(--accent); }

.foot {
  border-top: 1px solid var(--hairline);
  padding-block: 2.25rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
  font-family: var(--mono); font-size: var(--step--1); color: var(--muted);
}

/* ---- Reveal on scroll ----------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ============================================================================
   INK HERO — dark-on-light editorial variant for the homepage hero
   ========================================================================== */
.site-head { transition: background .45s var(--ease), border-color .45s var(--ease); }
.site-head .brand, .site-head .nav a { transition: color .35s var(--ease), border-color .3s var(--ease), background .3s var(--ease); }

.hero--ink {
  background-color: #0f1922;
  background-image:
    radial-gradient(78% 120% at 14% -10%, rgba(96,134,170,.26), transparent 55%),
    radial-gradient(70% 110% at 105% 110%, rgba(44,64,86,.40), transparent 60%),
    linear-gradient(180deg, #122029 0%, #0d161e 100%);
  color: #eaf1f7;
  margin-top: -1px;
  padding-block: clamp(7rem, 13vw, 11.5rem) clamp(3.5rem, 7vw, 6.5rem);
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
.hero--ink .label { color: #8499aa; }
.hero--ink .hero__role { color: #9cb1c2; }
.hero--ink .lede { color: #f3f7fb; }
.hero--ink .prose p { color: #b6c8d6; }
.hero--ink .prose strong { color: #fff; }
.hero--ink .hero__avail { color: #d4e2ee; }
.hero--ink .link { color: #b9d2e6; background-image: linear-gradient(#b9d2e6, #b9d2e6); }
.hero--ink .link:hover { color: #fff; }
.hero--ink .hero__signals { border-top-color: rgba(255,255,255,.16); }
.hero--ink .signal { border-color: rgba(255,255,255,.14); }
.hero--ink .signal__n { color: #fff; }
.hero--ink .signal__l { color: #8499aa; }

/* Ink-hero ambient layer: faint engineering grid + a slow drifting glow */
.hero--ink > .wrap { position: relative; z-index: 1; }
.hero--ink::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(125% 95% at 28% 8%, #000 28%, transparent 78%);
          mask-image: radial-gradient(125% 95% at 28% 8%, #000 28%, transparent 78%);
}
.hero--ink::after {
  content: ""; position: absolute; z-index: 0; pointer-events: none;
  top: -25%; right: -12%;
  width: clamp(360px, 60vw, 820px); aspect-ratio: 1 / 1;
  background: radial-gradient(closest-side, rgba(104,150,194,.30), rgba(104,150,194,0) 70%);
  animation: hero-drift 28s var(--ease-soft) infinite alternate;
}
@keyframes hero-drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(-7%, 7%, 0) scale(1.14); }
}
@media (prefers-reduced-motion: reduce) { .hero--ink::after { animation: none; } }

/* Header while floating over the ink hero */
.site-head.over-hero {
  background: transparent;
  backdrop-filter: none; -webkit-backdrop-filter: none;
  border-bottom-color: transparent;
}
.site-head.over-hero .brand, .site-head.over-hero .nav a { color: #eef4f9; }
.site-head.over-hero .nav a:hover { color: #fff; }
.site-head.over-hero .nav .nav-num { color: rgba(255,255,255,.42); }
.site-head.over-hero .nav .nav--cta {
  color: #fff; border-color: rgba(255,255,255,.38); background: rgba(255,255,255,.06);
}
.site-head.over-hero .nav .nav--cta:hover { border-color: #fff; background: rgba(255,255,255,.13); box-shadow: none; }

/* Light mode: the sticky header sits over the light page background (not the
   dark hero), so the white over-hero text is invisible. Restore dark text +
   normal button styling for the light theme. */
:root:not([data-theme="dark"]) .site-head.over-hero .brand { color: var(--ink); }
:root:not([data-theme="dark"]) .site-head.over-hero .nav a { color: var(--muted); }
:root:not([data-theme="dark"]) .site-head.over-hero .nav a:hover { color: var(--ink); }
:root:not([data-theme="dark"]) .site-head.over-hero .nav .nav-num { color: var(--line-2); }
:root:not([data-theme="dark"]) .site-head.over-hero .nav .nav--cta,
:root:not([data-theme="dark"]) .site-head.over-hero .theme-toggle,
:root:not([data-theme="dark"]) .site-head.over-hero .nav-toggle {
  color: var(--accent); background: var(--surface); border-color: var(--line-2);
}
:root:not([data-theme="dark"]) .site-head.over-hero .nav--cta { color: #fff; background: var(--accent); border-color: var(--accent); }
:root:not([data-theme="dark"]) .site-head.over-hero .nav--cta:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

/* Dark mode: header is solid dark-grey over the ink hero, then transitions to
   the navy frosted bar once scrolled below the hero (handled by the base
   .site-head rule using the dark --paper navy). */
:root[data-theme="dark"] .site-head.over-hero {
  background: #0f1922; /* matches the ink-hero dark grey */
  backdrop-filter: none; -webkit-backdrop-filter: none;
  border-bottom-color: rgba(255,255,255,0.06);
}

/* ---- Kinetic type (mask-reveal entrance) ---------------------------------- */
.kinetic__line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.kinetic__word { display: inline-block; will-change: transform; }
@media (prefers-reduced-motion: no-preference) {
  .kinetic__word {
    transform: translateY(118%);
    opacity: 0;
    animation: kin-rise 1s var(--ease) both;
    animation-delay: calc(var(--i, 0) * 0.11s + 0.12s);
  }
}
@keyframes kin-rise { to { transform: translateY(0); opacity: 1; } }

/* ============================================================================
   CASE STUDY PAGES
   ========================================================================== */
.case-hero { padding-block: clamp(2.5rem, 6vw, 5rem) clamp(1.5rem, 3vw, 2.5rem); }
.case-back {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.04em;
  color: var(--muted); text-decoration: none; margin-bottom: clamp(2rem, 5vw, 3.5rem);
  transition: color .3s var(--ease), gap .3s var(--ease);
}
.case-back:hover { color: var(--accent); gap: 0.75rem; }
.case__kicker {
  display: flex; align-items: center; gap: 0.7rem;
  font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 1.3rem;
}
.case__kicker .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.case__title { font-family: var(--display); font-size: var(--step-4); font-weight: 400; letter-spacing: -0.03em; line-height: 0.98; }
.case__sub { font-family: var(--display); font-size: var(--step-2); color: var(--muted); font-weight: 380; max-width: 26ch; margin-top: 0.7rem; letter-spacing: -0.015em; line-height: 1.2; }

.case-body { padding-bottom: clamp(3rem, 7vw, 6rem); }
.case-section { padding-block: clamp(2rem, 4.5vw, 3.5rem); border-top: 1px solid var(--line); }
.case-section__label { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 1.1rem; font-weight: 500; }
.case-section p { color: var(--ink-2); max-width: var(--measure); }
.case-section p + p { margin-top: 1em; }
.case-lede { font-family: var(--display); font-size: var(--step-1); color: var(--ink); font-weight: 360; line-height: 1.45; max-width: 50ch; letter-spacing: -0.01em; }

.highlights { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; margin-top: 1.5rem; }
@media (min-width: 680px) { .highlights { grid-template-columns: repeat(2, 1fr); } }
.hl { background: var(--surface); padding: clamp(1.4rem, 3vw, 2rem); }
.hl h3 { font-family: var(--display); font-size: var(--step-1); font-weight: 440; letter-spacing: -0.015em; margin-bottom: 0.45rem; }
.hl p { font-size: var(--step--1); color: var(--muted); line-height: 1.55; max-width: none; }

.caps { list-style: none; padding: 0; margin-top: 1.25rem; columns: 2; column-gap: 2.5rem; }
.caps li { font-family: var(--mono); font-size: var(--step--1); color: var(--ink-2); padding: 0.55rem 0; border-bottom: 1px solid var(--line); break-inside: avoid; }
@media (max-width: 560px) { .caps { columns: 1; } }

.case-cta {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  display: inline-flex; align-items: center; gap: 0.7rem;
  font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.04em;
  text-decoration: none; color: #fff; background: var(--accent);
  padding: 0.85em 1.4em; border-radius: 100px;
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.case-cta:hover { background: var(--accent-deep); transform: translateY(-2px); box-shadow: var(--shadow); }

.case-next {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
  padding-block: clamp(2rem, 4vw, 3rem); border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: var(--step--1);
}
.case-next a { text-decoration: none; color: var(--ink-2); display: inline-flex; gap: 0.5rem; align-items: center; transition: color .3s var(--ease), gap .3s var(--ease); }
.case-next a:hover { color: var(--accent); }
.case-next a.next:hover { gap: 0.8rem; }

/* ---- Metrics strip -------------------------------------------------------- */
.metrics {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 1px; background: var(--line); border: 1px solid var(--line);
  border-radius: 16px; overflow: hidden; margin-top: 1.5rem;
}
@media (min-width: 720px) { .metrics { grid-template-columns: repeat(4, 1fr); } }
.metric { background: var(--surface); padding: clamp(1.4rem, 3vw, 2rem); }
.metric__n { font-family: var(--display); font-size: var(--step-3); font-weight: 400; letter-spacing: -0.02em; line-height: 1; color: var(--ink); }
.metric__l { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-top: 0.65rem; line-height: 1.4; }
.case-note { margin-top: 1.25rem; color: var(--muted); font-size: var(--step--1); font-family: var(--mono); letter-spacing: 0.01em; }

/* ---- Case gallery --------------------------------------------------------- */
.case-gallery { display: grid; gap: clamp(0.75rem, 2vw, 1.25rem); margin-top: 1.5rem; }
@media (min-width: 680px) {
  .case-gallery { grid-template-columns: repeat(2, 1fr); }
  .case-figure.wide { grid-column: 1 / -1; }
}
.case-figure {
  margin: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  background: var(--surface); box-shadow: var(--shadow-sm);
}
.case-figure img { width: 100%; height: auto; display: block; }
.case-figure figcaption {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.04em;
  color: var(--muted); padding: 0.7rem 0.9rem; border-top: 1px solid var(--line);
}

/* ---- Projects (within a case study) — discrete cards, any count ----------- */
.projects { display: grid; gap: clamp(0.75rem, 1.5vw, 1rem); margin-top: 1.5rem; }
@media (min-width: 680px) {
  .projects { grid-template-columns: repeat(2, 1fr); }
  .projects:has(.project:only-child) { grid-template-columns: 1fr; }
}
.project {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow-sm); overflow: hidden;
  display: flex; flex-direction: column;
}
.project__media { aspect-ratio: 16 / 9; background: var(--paper-deep); border-bottom: 1px solid var(--line); }
.project__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.project__body { padding: clamp(1.5rem, 3vw, 2.1rem); display: flex; flex-direction: column; gap: 0.7rem; flex: 1; }
.project-group + .project-group { margin-top: clamp(1.75rem, 3.5vw, 2.5rem); }
.project-group__title {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted); font-weight: 500;
}
.project-group .projects { margin-top: 0.85rem; }
.project-group .highlights { margin-top: 0.85rem; }

/* ============================================================================
   Elevated · glass · 3D — subtle glassmorphism + neumorphic depth
   ========================================================================== */

/* Glass / neumorphic project & division cards with a gentle 3D tilt */
.project {
  position: relative;
  background: linear-gradient(155deg, rgba(255,255,255,0.95), rgba(255,255,255,0.72));
  -webkit-backdrop-filter: blur(9px) saturate(1.12);
  backdrop-filter: blur(9px) saturate(1.12);
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.9),
    0 2px 4px rgba(20,40,60,0.04),
    0 20px 42px -22px rgba(18,40,62,0.34);
  transform: perspective(1100px) rotateX(var(--ry, 0deg)) rotateY(var(--rx, 0deg)) translateZ(0);
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.project__media, .project__body { position: relative; z-index: 1; }
@media (hover: hover) and (pointer: fine) {
  .project { will-change: transform; }
  .project:hover {
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,0.95),
      0 6px 12px rgba(20,40,60,0.07),
      0 44px 72px -28px rgba(18,40,62,0.5);
  }
}
@media (prefers-reduced-motion: reduce) {
  .project { transform: none !important; }
}

/* Gallery — hover zoom + zoomable affordance */
.case-figure { cursor: zoom-in; }
.case-figure img { transition: transform 0.7s var(--ease); }
.case-figure:hover img { transform: scale(1.05); }

/* Hero showcase — a glass-framed, swipeable carousel with pill indicators */
.case-showcase { margin-top: clamp(2rem, 5vw, 3.25rem); }
.carousel {
  position: relative; border-radius: 18px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.72); background: var(--surface);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.9),
    0 2px 6px rgba(18,40,62,0.10),
    0 50px 90px -34px rgba(18,40,62,0.55);
}
.carousel__track {
  display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.carousel__track::-webkit-scrollbar { display: none; }
.carousel__slide {
  flex: 0 0 100%; width: 100%; aspect-ratio: 16 / 9;
  object-fit: cover; scroll-snap-align: center; display: block; cursor: zoom-in;
}
.case-showcase__pills { display: flex; justify-content: center; gap: 0.5rem; margin-top: 1rem; }
.case-showcase__pills button {
  width: 8px; height: 8px; padding: 0; border: none; border-radius: 50%;
  background: var(--line-2); cursor: pointer;
  transition: background .3s var(--ease), width .3s var(--ease), border-radius .3s var(--ease);
}
.case-showcase__pills button:hover { background: var(--muted); }
.case-showcase__pills button.is-active { background: var(--accent); width: 22px; border-radius: 5px; }

/* Prev/next arrows — desktop (fine pointers) only; touch uses swipe */
.carousel__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%; z-index: 2;
  display: none; place-items: center; cursor: pointer;
  border: 1px solid rgba(255,255,255,0.5);
  background: rgba(20,32,43,0.42); color: #fff;
  -webkit-backdrop-filter: blur(8px) saturate(1.2); backdrop-filter: blur(8px) saturate(1.2);
  opacity: 0; transition: opacity .3s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
}
.carousel__nav svg { width: 20px; height: 20px; }
.carousel__nav.prev { left: 14px; }
.carousel__nav.next { right: 14px; }
.carousel__nav:hover { background: rgba(20,32,43,0.65); border-color: #fff; }
.carousel__nav:disabled { opacity: 0 !important; pointer-events: none; }
@media (hover: hover) and (pointer: fine) {
  .carousel__nav { display: grid; }
  .case-showcase:hover .carousel__nav { opacity: 1; }
  .carousel__nav:focus-visible { opacity: 1; }
}
:root[data-theme="dark"] .carousel {
  border-color: rgba(255,255,255,0.16);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.14),
    0 2px 6px rgba(0,0,0,0.40),
    0 50px 90px -34px rgba(0,0,0,0.72);
}

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  display: grid; place-items: center; padding: clamp(1rem, 4vw, 3rem);
  background: rgba(9, 16, 24, 0.82);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  opacity: 0; visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease);
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img {
  max-width: min(1120px, 100%); max-height: 86vh;
  border-radius: 12px; box-shadow: 0 50px 120px -24px rgba(0,0,0,0.7);
  transform: scale(0.96); transition: transform 0.4s var(--ease);
}
.lightbox.is-open img { transform: scale(1); }
.lightbox__cap {
  position: absolute; left: 0; right: 0; bottom: clamp(1rem, 3vw, 2rem);
  text-align: center; font-family: var(--mono); font-size: var(--step--1);
  letter-spacing: 0.04em; color: #cfdbe6;
}
.lightbox__close {
  position: absolute; top: clamp(1rem, 3vw, 1.5rem); right: clamp(1rem, 3vw, 1.5rem);
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.28); background: rgba(255,255,255,0.08);
  color: #fff; font-size: 1.1rem; cursor: pointer; display: grid; place-items: center;
  transition: background 0.25s var(--ease);
}
.lightbox__close:hover { background: rgba(255,255,255,0.18); }
.project h3 { font-family: var(--display); font-size: var(--step-1); font-weight: 440; letter-spacing: -0.015em; }
.project p { color: var(--muted); font-size: var(--step--1); line-height: 1.55; flex: 1; max-width: none; }
.project__links { display: flex; flex-wrap: wrap; gap: 1.3rem; margin-top: 0.4rem; font-family: var(--mono); font-size: var(--step--1); }
.project__tag {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); border: 1px solid var(--line-2); border-radius: 100px; padding: 0.2em 0.7em;
}

/* ============================================================================
   DARK THEME — deep-blue glass (opt-in via the header toggle)
   Blends the glassmorphism reference (royal-navy gradient, frosted panels)
   with our navy / gunmetal system.
   ========================================================================== */
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper:        #0b1733;
  --paper-deep:   #0a1330;
  --surface:      #15224a;
  --surface-soft: #1a2853;
  --ink:          #d9e3f4; /* headings — soft off-white, not stark */
  --ink-2:        #aab8d6; /* body — eased for less glare on dark */
  --muted:        #8294bb;
  --faint:        #6b7da8;
  --line:         #26356a;
  --line-2:       #3a4d8e;
  --hairline:     rgba(255,255,255,0.08);
  --accent:       #8fb3f0;
  --accent-deep:  #bcd4fb;
}
:root[data-theme="dark"] body {
  background-color: #0a1430;
  background-image:
    radial-gradient(120% 72% at 50% -12%, rgba(96,134,210,0.24), transparent 60%),
    radial-gradient(80% 55% at 100% 0%, rgba(180,128,96,0.10), transparent 55%),
    linear-gradient(180deg, #0e1c42 0%, #0a1430 55%, #080f26 100%);
}
:root[data-theme="dark"] ::selection { background: var(--accent); color: #0a1430; }

/* Glass cards become true frosted panels on the blue */
:root[data-theme="dark"] .project {
  background: linear-gradient(155deg, rgba(255,255,255,0.11), rgba(255,255,255,0.035));
  border-color: rgba(255,255,255,0.14);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.13),
    0 2px 5px rgba(0,0,0,0.30),
    0 24px 46px -22px rgba(0,0,0,0.60);
}
:root[data-theme="dark"] .project:hover {
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.18),
    0 6px 14px rgba(0,0,0,0.35),
    0 46px 78px -28px rgba(0,0,0,0.70);
}
:root[data-theme="dark"] .case-showcase__frame {
  border-color: rgba(255,255,255,0.16);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.14),
    0 2px 6px rgba(0,0,0,0.40),
    0 50px 90px -34px rgba(0,0,0,0.72);
}
:root[data-theme="dark"] .about__aside,
:root[data-theme="dark"] .portrait { box-shadow: 0 24px 46px -24px rgba(0,0,0,0.6); }

/* Theme toggle button */
.theme-toggle {
  width: 34px; height: 34px; border-radius: 50%; flex: none;
  border: 1px solid var(--line-2); background: var(--surface);
  color: var(--muted); cursor: pointer; display: grid; place-items: center;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease);
}
.theme-toggle:hover { color: var(--ink); border-color: var(--accent); transform: translateY(-1px); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .i-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .i-sun { display: block; }
.site-head.over-hero .theme-toggle { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.34); color: #eef4f9; }
.site-head.over-hero .theme-toggle:hover { border-color: #fff; }

/* ============================================================================
   Article / essay (Writing)
   ========================================================================== */
.article { max-width: 760px; padding-block: clamp(2.5rem, 6vw, 5rem) clamp(3rem, 7vw, 6rem); }
.article__title { font-family: var(--display); font-size: var(--step-4); font-weight: 400; letter-spacing: -0.03em; line-height: 1.0; margin-top: 1rem; }
.article__standfirst { font-family: var(--display); font-size: var(--step-2); font-weight: 360; line-height: 1.3; letter-spacing: -0.015em; color: var(--ink); margin-top: 1rem; }
.article__byline { font-family: var(--mono); font-size: var(--step--1); color: var(--muted); letter-spacing: 0.04em; margin-top: 1.25rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.article__body { margin-top: clamp(2rem, 4vw, 2.5rem); font-size: var(--step-1); max-width: none; }
.article__body p { color: var(--ink-2); line-height: 1.7; }
.article__body p + p { margin-top: 1.2em; }
.article__body h2 { font-family: var(--display); font-size: var(--step-2); font-weight: 400; letter-spacing: -0.02em; line-height: 1.12; margin: 1.6em 0 0.45em; color: var(--ink); }
.article__body strong, .article__body em { color: var(--ink); }
.article__note { font-size: var(--step-0) !important; color: var(--muted) !important; font-style: italic; margin-top: 2em; padding-top: 1.25rem; border-top: 1px solid var(--line); }

/* ============================================================================
   Testimonials
   ========================================================================== */
.quotes { display: grid; gap: clamp(1rem, 2vw, 1.25rem); }
@media (min-width: 760px) { .quotes { grid-template-columns: repeat(2, 1fr); } }
.quote { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: clamp(1.5rem, 3vw, 2rem); box-shadow: var(--shadow-sm); }
.quote p { font-family: var(--display); font-size: var(--step-1); font-weight: 360; line-height: 1.45; letter-spacing: -0.01em; color: var(--ink); }
.quote footer { margin-top: 1.1rem; font-family: var(--mono); font-size: var(--step--1); color: var(--muted); letter-spacing: 0.02em; }
.quote footer strong { color: var(--ink-2); font-weight: 500; }

/* ============================================================================
   Email icon CTA + footer social
   ========================================================================== */
.nav .nav--cta {
  width: 34px; height: 34px; padding: 0; border-radius: 50%; flex: none;
  display: grid; place-items: center;
  background: var(--accent); border: 1px solid var(--accent); color: #fff; box-shadow: none;
}
.nav .nav--cta:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; transform: translateY(-1px); box-shadow: none; }
.nav .nav--cta svg { width: 16px; height: 16px; }
.site-head.over-hero .nav--cta { background: rgba(255,255,255,0.14); border-color: rgba(255,255,255,0.45); color: #fff; }
.site-head.over-hero .nav--cta:hover { background: rgba(255,255,255,0.24); border-color: #fff; }

.foot__social { display: flex; gap: 0.95rem; align-items: center; }
.foot__social a { color: var(--muted); display: inline-flex; transition: color .25s var(--ease), transform .25s var(--ease); }
.foot__social a:hover { color: var(--accent); transform: translateY(-2px); }
.foot__social svg { width: 18px; height: 18px; display: block; }

/* ============================================================================
   Audience-aware contact modes
   ========================================================================== */
.contact__modes { display: grid; gap: clamp(0.75rem, 1.5vw, 1rem); margin-top: clamp(2rem, 5vw, 3rem); }
@media (min-width: 760px) { .contact__modes { grid-template-columns: repeat(3, 1fr); } }
.mode {
  display: flex; flex-direction: column; gap: 0.35rem; text-decoration: none;
  padding: clamp(1.1rem, 2.5vw, 1.5rem); border: 1px solid var(--line); border-radius: 14px;
  background: var(--surface); box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.mode:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--line-2); }
.mode strong { font-family: var(--display); font-size: var(--step-1); font-weight: 440; letter-spacing: -0.01em; color: var(--ink); }
.mode span { font-family: var(--mono); font-size: var(--step--1); color: var(--muted); letter-spacing: 0.02em; }
:root[data-theme="dark"] .mode { background: linear-gradient(155deg, rgba(255,255,255,0.10), rgba(255,255,255,0.035)); border-color: rgba(255,255,255,0.14); }

/* ============================================================================
   Scroll-to-top button
   ========================================================================== */
.to-top {
  position: fixed; right: clamp(1rem, 3vw, 2.25rem); bottom: clamp(1rem, 3vw, 2.25rem);
  z-index: 60; width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer;
  color: #fff; background: var(--accent); border: 1px solid var(--accent);
  box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(14px) scale(0.9);
  transition: opacity .4s var(--ease), transform .4s var(--ease), visibility .4s var(--ease), background .25s var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--accent-deep); border-color: var(--accent-deep); transform: translateY(-2px); }
.to-top svg { width: 18px; height: 18px; }
:root[data-theme="dark"] .to-top {
  background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.2); color: var(--ink);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
:root[data-theme="dark"] .to-top:hover { background: rgba(255,255,255,0.2); }
@media (prefers-reduced-motion: reduce) { .to-top { transition: opacity .3s linear, visibility .3s linear; transform: none; } .to-top.is-visible { transform: none; } }

/* ============================================================================
   Brand logo lockups (case pages)
   ========================================================================== */
.brandbar {
  display: flex; align-items: center; gap: clamp(1.25rem, 3vw, 2.5rem);
  flex-wrap: wrap; margin-top: 1.4rem;
}
.brandbar img { height: clamp(22px, 3.2vw, 30px); width: auto; display: block; opacity: 0.92; }
.brandbar .brandbar__sep { width: 1px; height: 26px; background: var(--line); }
:root[data-theme="dark"] .brandbar img.invert-on-dark { filter: brightness(0) invert(1); opacity: 0.9; }

/* A small logo lockup beside a case title / kicker */
.case-logo { height: clamp(30px, 5vw, 46px); width: auto; display: block; margin-bottom: 1.1rem; }
:root[data-theme="dark"] .case-logo.invert-on-dark { filter: brightness(0) invert(1); }

/* Logo chip inside cards / signals */
.logo-chip { display: inline-flex; align-items: center; gap: 0.5rem; }
.logo-chip img { height: 20px; width: auto; display: block; }

/* ============================================================================
   "Ask my portfolio" chat agent
   ========================================================================== */
.chat-panel {
  position: fixed; z-index: 120; right: clamp(1rem, 3vw, 2.25rem); bottom: clamp(1rem, 3vw, 2.25rem);
  width: min(400px, calc(100vw - 2rem)); height: min(560px, calc(100dvh - 2rem));
  display: flex; flex-direction: column; overflow: hidden;
  border-radius: 18px; border: 1px solid rgba(255,255,255,0.65);
  background: linear-gradient(160deg, rgba(255,255,255,0.97), rgba(255,255,255,0.9));
  -webkit-backdrop-filter: blur(16px) saturate(1.1); backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: 0 50px 90px -30px rgba(18,40,62,0.55), inset 0 1px 0 rgba(255,255,255,0.9);
  opacity: 0; visibility: hidden; transform: translateY(16px) scale(0.98);
  transition: opacity .35s var(--ease), transform .35s var(--ease), visibility .35s var(--ease);
}
.chat-panel.is-open { opacity: 1; visibility: visible; transform: none; }
:root[data-theme="dark"] .chat-panel {
  border-color: rgba(255,255,255,0.14);
  background: linear-gradient(160deg, rgba(26,40,83,0.96), rgba(13,22,48,0.96));
  box-shadow: 0 50px 90px -30px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.12);
}
@media (max-width: 540px) {
  .chat-panel { right: 0; bottom: 0; width: 100vw; height: 100dvh; border-radius: 0; border: none; }
}
@media (prefers-reduced-motion: reduce) {
  .chat-panel { transition: opacity .25s linear, visibility .25s linear; transform: none; }
  .chat-panel.is-open { transform: none; }
}

.chat-head {
  display: flex; align-items: center; gap: 0.7rem; padding: 0.95rem 1.1rem;
  border-bottom: 1px solid var(--line); flex: none;
}
.chat-head .mono-mark { width: 26px; height: 26px; flex: none; }
.chat-head .mono-mark img { width: 100%; height: 100%; object-fit: contain; }
.chat-head__t { display: flex; flex-direction: column; line-height: 1.2; }
.chat-head__t strong { font-family: var(--display); font-size: var(--step-0); font-weight: 440; letter-spacing: -0.01em; color: var(--ink); }
.chat-head__t span { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.chat-close {
  margin-left: auto; width: 32px; height: 32px; border-radius: 50%; flex: none;
  border: 1px solid var(--line-2); background: transparent; color: var(--muted);
  cursor: pointer; display: grid; place-items: center; transition: color .25s var(--ease), border-color .25s var(--ease);
}
.chat-close:hover { color: var(--ink); border-color: var(--accent); }
.chat-close svg { width: 15px; height: 15px; }

.chat-log { flex: 1; overflow-y: auto; padding: 1.1rem; display: flex; flex-direction: column; gap: 0.85rem; }
.chat-msg { max-width: 88%; font-size: var(--step--1); line-height: 1.55; padding: 0.7rem 0.9rem; border-radius: 14px; white-space: pre-wrap; }
.chat-msg.user { align-self: flex-end; background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.chat-msg.bot { align-self: flex-start; background: var(--surface-soft); color: var(--ink); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
:root[data-theme="dark"] .chat-msg.bot { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: var(--ink); }
.chat-msg.bot a { color: var(--accent); text-decoration: underline; }
.chat-intro { font-size: var(--step--1); color: var(--muted); line-height: 1.55; }
.chat-intro strong { color: var(--ink); font-family: var(--display); font-weight: 440; }

.chat-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.25rem; }
.chat-chip {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.02em; color: var(--ink-2);
  border: 1px solid var(--line-2); background: var(--surface); border-radius: 100px;
  padding: 0.35em 0.75em; cursor: pointer; transition: border-color .25s var(--ease), color .25s var(--ease), transform .2s var(--ease);
}
.chat-chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
:root[data-theme="dark"] .chat-chip { background: rgba(255,255,255,0.05); }

.chat-typing { display: inline-flex; gap: 4px; align-items: center; }
.chat-typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: chat-bounce 1.2s var(--ease-soft) infinite; }
.chat-typing span:nth-child(2) { animation-delay: .15s; }
.chat-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes chat-bounce { 0%,80%,100% { opacity:.3; transform: translateY(0); } 40% { opacity:1; transform: translateY(-3px); } }
@media (prefers-reduced-motion: reduce) { .chat-typing span { animation: none; opacity:.6; } }

.chat-form { display: flex; gap: 0.5rem; padding: 0.8rem; border-top: 1px solid var(--line); flex: none; }
.chat-form input {
  flex: 1; font-family: var(--sans); font-size: var(--step--1); color: var(--ink);
  background: var(--surface); border: 1px solid var(--line-2); border-radius: 100px; padding: 0.6rem 0.95rem;
}
:root[data-theme="dark"] .chat-form input { background: rgba(255,255,255,0.06); }
.chat-form input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.chat-send {
  width: 40px; height: 40px; flex: none; border-radius: 50%; border: 1px solid var(--accent);
  background: var(--accent); color: #fff; cursor: pointer; display: grid; place-items: center;
  transition: background .25s var(--ease), transform .25s var(--ease);
}
.chat-send:hover { background: var(--accent-deep); transform: translateY(-1px); }
.chat-send:disabled { opacity: .5; cursor: default; transform: none; }
.chat-send svg { width: 17px; height: 17px; }
.chat-disclaimer { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.04em; color: var(--faint); text-align: center; padding: 0 0.8rem 0.7rem; }